feat: add redirect handling for /index.php route

Added a new route to handle redirects from /<project>/<lang>/w/index.php. The redirect fetches the main page from the Wiki API and redirects to it. This improves user navigation by dynamically redirecting to the main page of the relevant project and language.

src/wikimore/app.py

@@ -293,6 +293,20 @@ logger.debug(
 )
 
 
+@app.route("/<project>/<lang>/w/index.php")
+def index_php_redirect(project, lang):
+    # TODO: Handle query string
+
+    url = f"{app.languages[lang]['projects'][project]}/w/api.php?action=query&format=json&meta=siteinfo&siprop=general"
+    with urllib.request.urlopen(url) as response:
+        data = json.loads(response.read().decode())
+    main_page = data["query"]["general"]["mainpage"]
+
+    return redirect(
+        url_for("wiki_article", project=project, lang=lang, title=main_page)
+    )
+
+
 def main():
     port = int(os.environ.get("PORT", 8109))
     host = os.environ.get("HOST", "0.0.0.0")